Lexus 2011 RX350, Owner'S Manual

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4-3. Do-it-yourself maintenance
4
Main
tenance an
d care
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Tire inflation pressure check interval
You should check tire inflation pressure every two weeks, or at least once a month.
Do not forget to check the spare.
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Effects of incorrect tire inflation pressure
Driving with incorrect tire inflation pressure may result in the following:
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Reduced fuel efficiency
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Reduced driving comfort and tire life
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Reduced safety
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Damage to the drive train
If a tire needs frequent inflating, have it checked by your Lexus dealer.
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Instructions for checking tire pressure
When checking tire inflation pressure, observe the following:
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Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours and has not been driven for
more than 1 mile or 1.5 km, you will get an accurate cold tire inflation pressure
reading.
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Always use a tire pressure gauge.
The appearance of the tire can be misleading. In addition, tire inflation pressures
that are even just a few pounds off can degrade ride and handling.
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Do not reduce tire inflation pressure after driving. It is normal for the tire infla-
tion pressure to be higher after driving.
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Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle is bal-
anced.